It's Friday again already? Here's what I liked this week!
5000 years of love: Cats became domesticated earlier than we thought
We know humans and cats hung out together at least 9500 years ago. And we have evidence of domesticated cats dating 4000 years ago. We didn't know much about what happened between these two time periods until now. Scientists have found evidence for co-existence (cats living on human food) and possible domestication in China 5000 years ago. Read more here or here
Social learning in chimps
A study in Zambia found differences between chimp colonies in how they open hard-shelled fruits, demonstrating support for both social learning and culture. If you can, read the source article, or try this article (Some articles had absurd statements, like, "further strengthens the fact that chimps are our closest relatives!" - uh, no that's proven by genetics...).
Dogs recognize familiar faces from images
This study looked at both research dogs and pet dogs in Helsinki, presenting them with images (both upright and inverted) of humans and dogs (familiar and strangers), then used eye-tracking technology to measure where they looked and for how long. Dogs like to look at pictures of other dogs, and they look longer of images of both familiar dogs and humans, and they particularly spend more time looking in the eye area. Original article here, news write up here.